Gripper with serially pivoted fingers

Details Gripper with serially pivoted fingers Gripper with serially pivoted fingers

1980-10-08

1982-09-21

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

269266, 269270, 294 99R, 294106, B66C 316

Patent

active

043503810

ABSTRACT:
A manipulator gripper includes a plurality of serially pivoted cylindrical finger members 3, each having an axially parallel but eccentrically disposed bore hole 14 slidably accommodating a piston 5. Upon the application of fluid pressure each piston acts upon the rear surface 15 of a finger member immediately in front to pivot the latter about a bearing bolt 11. A frictional coating 13 may be provided on the working surfaces of the finger members to implement firm workpiece gripping, and a pneumatic sensor line 12 may be disposed below such coating to detect workpiece engagement. Springs 8 provide a restoring force after fluid pressure is relieved.

REFERENCES:
patent: 2497493 (1950-02-01), Edwards
patent: 2847678 (1958-08-01), Opuszenski
patent: 2875913 (1959-03-01), Gohrke et al.
patent: 3090049 (1963-05-01), Lanteigne
patent: 3804452 (1974-04-01), David et al.

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